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Fact or Fiction – Preseason Training

Fact or Fiction – Preseason Training

by | Nov 22, 2019 | Gym and Strength, Return to Sport, Sports Injury

Answer – FACT

With preseason training just around the corner, this blog is a timely reminder that turning up to preseason training consistently will give athletes the best chance of being able to play most games next year.

Murray et al (2017) reported that AFL players who completed <50% of pre-season training were 2x more likely to sustain in-season injury than those who completed >85%! This is not just relevant to elite AFL, it is relevant to all sports of all levels (even more so)! So what’s the take home message? For the best chance to be able to play week in/week out during the competitive phase of the season, consistency during preseason is vital.

If you had injuries last season or are trying to make this your best season yet, see us to make sure you are ticking all the boxes!

#praxisphysio #preventprepareperform #factorfictionfriday #preseasontraining #praxispwhatyoupreach #afl #sportsphysio #preventprepareperform

References:

Murray NB, et al. Relationship Between Preseason Training Load and In-Season Availability in Elite Australian Football Players. Int J Sports Physiol Perform. 2017.

Chronic Groin Pain (Athletic Pubalgia)

Chronic Groin Pain (Athletic Pubalgia)

by | Oct 26, 2019 | Gym and Strength, Hip, Pain, Return to Sport, Sports Injury

GROIN PAIN

Groin pain, referred to also as athletic pubalgia, is a common problem for a number of athletes, particularly those who engage in sports that require specific use (or overuse) of lower abdominal muscles and the proximal muscles of the thigh. Predominantly, these activities centre around kicking sports such as AFL and soccer, as well as long distance running. Ice hockey is also a well renowned sport in which chronic groin pain occurs. All these sports involve repetitive energetic kicking, twisting, turning or cutting movements, which are all risk factors for causing pubalgia.

SUMMARY:

  • Four structures are commonly implicated in the causes of groin pain
  • Adductor muscles
  • Pubic bone
  • Abdominal wall
  • Iliopsoas
  • Understanding which of these four structures is causing your pain is key in effective management
  • Exercise therapy and activity modifications should be the mainstay of treatment
  • Absolute rest has been shown to be ineffective
  • Steady gradual progressions through strength and function, tailored to your goals, is key to successful management
Mid Potion Achilles Tendinopathy Location

ROLE OF HIP ADDUCTORS (groin muscles)

Similar to other joints in the body, the hip relies on muscular control for stability and movement. At the hip, there are five key planes of movement; flexion, extension, abduction, adduction and rotation.

The adductor muscles are a large group of muscles located on the inner side of the thigh, attaching from below the knee, along the shaft of the femur and into the pubic bone of the pelvis.

While acute tears of the adductor muscle is common, more long standing pain is usually the result of an overload of the adductor tendon that attach to the pelvis. This is called an adductor tendinopathy. Adductor enthesopathy is common disorder which effects the bony attachment point of the tendon, with a slight structural difference from tendinopathy, however, management is similar in both cases

MANAGEMENT OPTIONS

Exercise:

Strength and functional based exercise are the core management strategies for adductor tendinopathy, and have been shown to increase function, decrease pain and reduce likelihood of injury [4].

Activity Modification:

Activity modification, especially in the acute phase or when symptoms are significantly affecting function, is key in reducing load on the affected structures and allowing tissues to adapt. [1]

Rest:

While activity modification is important, absolute rest has been shown to be ineffective in the management of adductor tendinopathy, and does not promote adequate tissue repair. [1,2]

Other:

Other conservative measures such as manual therapy, electrotherapy and stretching have been [1] explored, with reduced effect compared exercise prescription. Surgical management is also a potential option, with some positive results emerging for groin pain, though specific evidence [10] around adductor tendinopathy is limited. [10]

WHY IS EXERCISE IMPORTANT?

Exercise has been shown to increase tendon turnover, meaning in the first 24-36 hours there is a reduction in tendon integrity, but after that there is an overall increase in integrity and strength. Other benefits include: increased blood flow, increase in growth factors, and a reduction in altered pain processes in the brain [14].

WHAT’S THE BEST EXERCISE?

Isometric exercise has been shown to be effective in short term pain relief. Current evidence is unclear as to the best long term exercise strategies, with evidence supporting both eccentric and heavy-slow isotonic exercise. [12]

EXERCISE PLAN

The Copenhagen Adductor Program [9], with the below dosage, has been shown to significantly improve adductor strength, as well as being effective in groin injury prevention. It is important to note that though the program is eight weeks long, most effective tendon[12] adaptations take ≥ 12 weeks, and a tailored dosage should be discussed with your physiotherapist towards the end stage of rehabilitation.

Depending on how the symptoms affect your function, a reduction in training, running and kicking may also be required. Example progressions are noted below in the running program, in order of loading on adductors.

ADDITIONAL STRENGTH AND PROGRAMS

While targeted strengthening to the adductors is key, global strengthening around the hip may also aid in a reduction of loading to the tendon. Thorough assessment of your strength through all five movements noted previously is needed, as well as a tailored training program to resolve any discrepancies.

As symptoms reduce and function improves, part practice of painful activities, can be beneficial to reload structures, for example, banded kicking movements in preparation for return to soccer.

SUMMARY

In chronic adductor tendinopathy, tendon adaptations take time. It is important to understand this as you begin your rehab journey and not progress more than your body can tolerate. Steady gradual progressions through strength and function, tailored to your goals, is key to successful management.

As always, if you have a history of groin pain or are concerned about performance in your chosen sport, contact us today and chat to one of our friendly and knowledgeable physiotherapist to ensure you can Prevent. Prepare. Perform. Alternatively you can book online here

Till next time, Praxis what you Preach

Team Praxis

 

References: 

  1.  Almeida, M.O., et al., Conservative interventions for treating exercise‐related musculotendinous, ligamentous and osseous groin pain. Cochrane Database of Systematic Reviews, 2013(6).
  2. Bohm, S., F. Mersmann, and A. Arampatzis, Human tendon adaptation in response to mechanical loading: a systematic review and meta-analysis of exercise intervention studies on healthy adults. Sports Medicine – Open, 2015. 1(1): p. 7.
  3.  Brukner, P., Brukner & Khan’s clinical sports medicine / Peter Brukner … [et al.]. Sports medicine series, ed. K. Khan. 2012, North Ryde, N.S.W: McGraw-Hill Australia.
  4. Charlton, P.C., et al., Exercise Interventions for the Prevention and Treatment of Groin Pain and Injury in Athletes: A Critical and Systematic Review. Sports Med, 2017. 47(10): p. 2011-2026.
  5. Frizziero, A., et al., The role of eccentric exercise in sport injuries rehabilitation. Br Med Bull, 2014. 110(1): p. 47-75.
  6. Griffin, V.C., T. Everett, and I.G. Horsley, A comparison of hip adduction to abduction strength ratios, in the dominant and non-dominant limb, of elite academy football players. Journal of Biomedical Engineering and Informatics, 2015. 2(1): p. 109.
  7. Haroy, J., et al., The Adductor Strengthening Programme prevents groin problems among male football players: a cluster-randomised controlled trial. Br J Sports Med, 2019. 53(3): p. 150-157.
  8. Harøy, J., et al., Infographic. The Adductor Strengthening Programme prevents groin problems among male football players. British Journal of Sports Medicine, 2019. 53(1): p. 45.
  9. Haroy, J., et al., Including the Copenhagen Adduction Exercise in the FIFA 11+ Provides Missing Eccentric Hip Adduction Strength Effect in Male Soccer Players: A Randomized Controlled Trial. Am J Sports Med, 2017. 45(13): p. 3052-3059.
  10. Jorgensen, S.G., S. Oberg, and J. Rosenberg, Treatment of longstanding groin pain: a systematic review. Hernia, 2019.
  11. Kohavi, B., et al., Effectiveness of Field-Based Resistance Training Protocols on Hip Muscle Strength Among Young Elite Football Players. Clin J Sport Med, 2018.
  12. Lim, H.Y. and S.H. Wong, Effects of isometric, eccentric, or heavy slow resistance exercises on pain and function in individuals with patellar tendinopathy: A systematic review. Physiother Res Int, 2018. 23(4): p. e1721.
  13. Machotka, Z., S. Kumar, and L.G. Perraton, A systematic review of the literature on the effectiveness of exercise therapy for groin pain in athletes. Sports Med Arthrosc Rehabil Ther Technol, 2009. 1(1): p. 5.
  14. Magnusson, S.P., H. Langberg, and M. Kjaer, The pathogenesis of tendinopathy: balancing the response to loading. Nat Rev Rheumatol, 2010. 6(5): p. 262-8.
  15. Rio, E., et al., Tendon neuroplastic training: changing the way we think about tendon rehabilitation: a narrative review. British Journal of Sports Medicine, 2016. 50(4): p. 209.
  16. Thorborg, K., et al., The Copenhagen Hip and Groin Outcome Score (HAGOS): development and validation according to the COSMIN checklist. Br J Sports Med, 2011. 45(6): p. 478-91.
  17. Wei, A.S., et al., The effect of corticosteroid on collagen expression in injured rotator cuff tendon. The Journal of bone and joint surgery. American volume, 2006. 88(6): p. 1331-1338.
Throwing Injuries

Throwing Injuries

by | Mar 16, 2019 | Return to Sport, Shoulder, Sports Injury, Team Praxis

THROWING

This week in professional development session, our physio team delved into throwing techniques and links to injury. Proper throwing mechanics are important to understand as they may enable an athlete to achieve maximum performance with minimum chance of injury (Fleisig et al 2012).

Throwing, tennis serving, cricket fast bowling and golf swings are all excellent examples are how the summation of the bodies forces can result in massive outputs of power. Although force to a ball or other projectile is applied directly by the hand, a ‘kinetic chain’ of the entire body is used.

Mid Potion Achilles Tendinopathy Location

One essential and shared property of these activities is they utilise the kinetic chain to generate and transfer energy from the larger body parts to the smaller, more injury-prone upper extremities. These activities are all also notorious for high rates of injury. The kinetic chain principle asserts that in a coordinated human motion, energy and momentum are transferred through sequential body segments, achieving maximum magnitude in the terminal segment.

This kinetic chain in throwing includes the following sequence of motions: stride, pelvis rotation, upper torso rotation, elbow extension, shoulder internal rotation and wrist flexion (Fleisig et al 2012).

According to Agresta and colleagues (2019), Risk factors for shoulder pain are:

  • Workload (spikes or high volume)
  • Age (younger athletes are more prone to injury)
  • Throwing technique (e.g lack of follow through, elbow varus and shoulder external rotation torque)
  • Reduction in shoulder range of motion (particularly shoulder internal rotation in preseason)
  • Reduced preseason strength (supraspinatus and prone external rotation strength)
  • Reduction in thoracic rotation
  • Previous injury

Whilst we love a nerdy discussion on intrinsic vs extrinsic risk factors and specific rehab options as much as the next person, sometimes you just need to get outside in the sun and FEEL the task you are poring over!!

The key phases of throwing are loosely depicted in the below photos by our Praxis Principal and former 1st Grade Cricketer, Stephen (adapted from Escamilla et al 2007):

Click on the photo to slow the sequence

One of the final key questions from the day was: Who out of our physiotherapists has a “custard arm” and who has a “bullet”?? So if you or someone you know is in a throwing sport, have a chat to us today on (07) 3102 3337 or book online to ensure you have an injury free season ahead!

Until next time, Praxis what you preach

Team Praxis

Prevent. Prepare. Perform

Is running bad for your knees?

Is running bad for your knees?

by | Nov 28, 2018 | Knee, Pain, Return to Sport, Running Injuries, Sports Injury

Running. Probably one of the most maligned exercises when it comes to knees and overuse injuries. The thought that running ‘wears’ out your knees and causes osteoarthritis (a chronic disease often associated with joint pain and stiffness, reduced mobility and reduced quality of life) is one of the most common comments I hear as a physiotherapist – typically by non-runners. But do we have it right? Is running actually bad for your knees?

I recently attended the University of Queensland Sports Masters presentation day. The keynote speaker was a Dr Jean-Francois Esculier, a Postdoctoral Fellow at the University of British Columbia on the topics of running and knee osteoarthritis. Originally trained as a physiotherapist, Dr Esculier gave us an excellent overview of his latest research his take on whether or not running is detrimental to knee health.

First, there was an acknowledgement that echoed the sentiments in the opening paragraph. A study in which Dr Esculier undertook attempted to ascertain the perception about running and the knee joint health among the public and health care professionals. The results suggested that many non-runners perceived running as detrimental to knee health. Understandably, with no clear guidelines, health care professionals displayed high rates of uncertainty regarding running as a risk factor to develop knee osteoarthritis (KOA), and about the appropriateness of running with pre-existing KOA [1].

Mid Potion Achilles Tendinopathy Location

Osteoarthritis often results in cartilage loss, in bone rubbing on bone, which can cause inflammation, pain, stiffness, reduced mobility and reduced quality of life [7].

The paucity of clear training parameters for runners also has a knock on effect with a staggering 75% of runners report being injured whilst running each year with the knee being the most common region of complaint [2]. From my experience as a clinician, the factor that is most often associated with an injury are training errors. Too much too quick. Boom bust. No physical preparation. No listening to your body or allowing adequate recovery time. No periodisation or plan – just run and run.

The remainder of the talk that covered many interesting relatable topics (that will likely be areas for future blogs) but the information that most interested me and should answer the question as to whether running is bad for your knees was the following:

Cartilage change with running:

With the improvements in MRI scanning, more papers are looking at the cartilage volume of knees immediately after a long distance run. According to current evidence [3], cartilage may exhibit short-term decreases in thickness, volume and cartilage water flow (T2 relaxation time) secondary to temporary loss of fluid following repeated compressions associated with running. However, cartilage size tends to return to baseline within hours suggesting that cartilage may well tolerate mechanical loading sustained during running and adapt to repeated exposure.

The response of cartilage to longitudinal load is exactly what Van Ginckel et al [4] investigated. After providing a 10 week “Start To Run” program to novice runners, the reserachers looked at the glycosaminoglycan (GAG) content before and after the running intervention and compared to sedentary controls, who did no running. For those of you (like me) who had no idea what glycosaminoglycan / GAG content is, it is essentially a surrogate marker for cartilage quality (specifically, GAG is an important structural matrix compound in regulating the cartilage tissue’s endosmotic swelling pressure and thus, the tissue’s compressive strength).

The results suggested that a gradually built up running scheme appears to positively effect GAG content, and thus cartilage quality. In fact, running appears to be a chondroprotective effect on the knee when compared to a sedentary lifestyle in a female asymptomatic subjects. The author’s went onto say that running schemes like this might be considered a valuable tool in osteoarthritis prevention strategies [4].

Osteoarthritis (OA) rates in competitive vs recreational vs non-runners:

The body’s ability to adapt to considered and appropriate load is likely explanation as to why when we look at the rates of lower limb osteoarthritis (OA) across the population, we find some interesting results. A systematic review [5] of the literature looked at the association of recreational and competitive running with hip and knee OA. The overall prevalence of hip and knee OA was 13.3% in competitive runners, 3.5% in recreational runners, and 10.2% in controls. Exposure to running of less than 15 years was associated with a lower association with hip and/or knee OA compared with non-runners.

Recreational runners had a lower occurrence of OA compared with competitive runners and controls. These results indicated that a more sedentary lifestyle or long exposure to high-volume and/or high-intensity running are both associated with hip and/or knee OA. However, it was not possible to determine whether these associations were causative or confounded by other risk factors, such as previous injury [5].

SUMMARY

Running appears not to cause osteoarthritis in your knees unless you are a competitive long distance runner. Even then, you are only slightly above the average for non-runners but enjoy the myriad of other benefits that exercise brings. Further, increased mileage in recreational runners appears to be actually protective for your knees and reduces your risk of needing a knee replacement [6]. Caution however must be taken to monitor detailed training parameters such as frequency, speed and distance, so that an optimal dosage for knee joint health tailored to the individual patients with knee osteoarthritis.

So the next time someone tells you that you shouldn’t be running because you’ll get OA, or if your health expert recommends to stop all activity because you have been diagnosed with mild / moderate osteoarthritis of the knee, we can help! As always, we at Praxis are more than happy to help you navigate your way back to performing – whatever that may look like! Give us a call (07) 3102 3337 or book online www.praxisphysio.com.au today

Until next time, Praxis What You Preach

There is no need to accept knee pain as ‘normal’. Call us now on (07) 3102 3337 or book online to have one of our physios develop a plan to reduce your pain and restore your function!

To read more about how running can help your knees (that’s right – running!) check out our related posts on running written by our published principal physio, Stephen.

Team Praxis,

PREVENT | PREPARE | PERFORM